1 The lac operon consists of three structural genes, and a promoter, a terminator, regulator, and an operator. 2  The three structural genes are: lacZ, lacY, and lacA.n this case, when lactose is required as a sugar source for the bacterium, the three genes of the lac operon can be expressed and their subsequent proteins translated: lacZ, lacY, and lacA.
NEC Corporation (æ¥æ¬é»æ°æ ªå¼ä¼ç¤¾, Nippon Denki Kabushiki Gaisha) is a Japanese multinational provider of information technology (IT) services and products, headquartered in Minato, Tokyo, Japan.
Samsung Electric Industries was established as an industry Samsung Group in 1969 in Suwon, South Korea. Its early products were electronic and electrical appliances including televisions, calculators, refrigerators, air conditioners and washing machines. In 1970, Samsung Group established another subsidiary, Samsung-NEC, jointly with Japan's NEC Corporation to manufacture home appliances and audiovisual devices.